198071323 has 4 divisors (see below), whose sum is σ = 203424640. Its totient is φ = 192718008.

The previous prime is 198071309. The next prime is 198071353. The reversal of 198071323 is 323170891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198071323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198071353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2676603 + ... + 2676676.

It is an arithmetic number, because the mean of its divisors is an integer number (50856160).

Almost surely, 2^198071323 is an apocalyptic number.

198071323 is a deficient number, since it is larger than the sum of its proper divisors (5353317).

198071323 is an equidigital number, since it uses as much as digits as its factorization.

198071323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353316.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 198071323 is about 14073.7814037308. The cubic root of 198071323 is about 582.9176438366.

The spelling of 198071323 in words is "one hundred ninety-eight million, seventy-one thousand, three hundred twenty-three".